George j



G. J. GALBRAITH.

ELECTRIC HAND LIGHTING GAS EUENEE.

No. 567,971. l PafenltedSept. 22,1896.

Fil-g fand its support, with the gas turned oft'.

NirnD STATES FFICE GEORGE J. GALBRAITI-I, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE ELECTRIC GAS LIGHTING COMPANY, `OF SAME PLACE.

ELECTRIC HAND-LIGHTING GAS-BURNER.

SPECIFICATION Vforming part of Letters Patent No. 567,971, dated September 22, 1896. Application led June 25, 1896. Serial No. 596,868. (No model.)

To all whom t may concern:

Beit known that I, GEORGE J. GALBRAITH, of Boston,Massachusetts,have invented a new and useful Improvement in ,Electric Hand- Lighting Gas-Burners, and particularly in that variety thereof known as candle-burners,of which the following is a specication.

My invention relates to that class of electric hand-lighting gas-burners in which the movement ot the thumb-piece serves to oscillate the gas -valve and also to vibrate an electrode at the top of an elongated gas-pillar, such as is necessary in the case of what are called candle-burners, such Vburners requiring a very much more extended burnerpillar, in order to carry the burnentip up to the top of a porcelain or similar tube representing a candle. The constructionof these burners, of course, requires a diiferent kind of apparatus from that required in the ordinary form in which the burner-tube is of only ordinary and much less height.

My invention consists in new devices in this variety of candle-burners and a new combination of devices, fall so adapted as to avoid making a spark when turning off the gas.

My invention will be easily understood by reference to the accompanying drawings, in which- Figure l is a front view of the entire combination, omitting the porcelain candle-shade Fig. 2 is a similar view with the gas turned on. Fig. 3 is a side view with the gas turned on. Fig. el is a view of the entire combination when the support for the porcelain candle and the porcelain itself are in place. Fig. 5 is a section through the line 5 5, Fig. l. Fig. Gis a detail. Fig. 7 is a top view in horizontal section through y fg.

A is a bracket supporting the burner-tube, and also the handle a., which has the camplate a cut away so as to operate against the stop l, and having also the toothed plate 0,2 above the bracket held in place by the screw 2.

B is the oscillating gas-valve, having rigidly fixed upon its stem the toothed plate l?, having the teeth b, and held in place by the screw b2, and perforated at b3 to admit the connecting-rod X.

C is the elongated gas-pillar, having the fixed electrode c, preferably set in a met-al collar c', insulated from the burner-pillar C 55 and connecting with one of the circuit-wires c2, and upon opposite sides of. which body C are two iiexible springs c3 for holding in position the porcelain candle.

D (best shown twice enlarged in Fig. 7) is 6o a vibrating plate whose center is cut away eccentrically, and which is pivoted at CZ upon an arm CW, which is loosely pivoted to the 5 burner-pillar C by means of the screw-pivot 3, which, for the sake of strength, preferably passes through the burnenpillar C and is turned over or soldered at 4t. About the head of the pivot 3 rotates the plate D, said plate having also a pin 5, to which is attached the other end of the connectingrod X, and con- 7o nected with said plate at d2 is a bit of platinum wire cl3, servin g as the movable electrode. The arm CZ is retained from the pillar and against the head of the screw 3 by the friction-spring d4. The purpose in this friction or retaining spring is to e'Xert sufficient pressure upon the arm d to hold it stationary during the elevating of the rod X until the plate D bears against the lower partof the pin 3 instead of the upper part, from which 8o time on, until the electrode assumes the position shown in Fig. 2, it is necessary that the arm cl should revolve with the plate D.

E is a guide through which passes the movable electrode cl3.

Having described the construction of my improvement, its operation will now be evident. The support F for the porcelain candle G and the candle being understood to be in place, as in Fig. 4, when the apparatus is 9o in the position shown in Fig. l, with the gas turned off, a quarter-rotation of the thumbkey will, by means of the toothed plates 0.2 and b, cause the gas-valve to partially rotate until it is open. The extent of rotation is de- 9 5 termined by the cam on the plate ce and the stop l. At the same time the connectingrod X will be elevated to the position shown in Fig. 2. In the course of assuming that position the connecting-rod will cause the Vroo plate D to partially rotate, together with the arm d', which is pivoted upon it at CZ, and thereby the movable electrode d3, passing through the guide E, willbe slightly elevated, oscillated into and out of contact with the iixed electrode, and then slightly depressed, lighting the gas. In turning the gas off the rod X, pulling down upon the pin 5, will, by reason of the cut-away portion of the plate D, slightly depress the same, and therebyso depress the movable electrode d3 that, as it passes back to the position shown in Fig. l, it will not make contact with the fixed electrode C. It will be seen, therefore, that battery power is saved by avoiding any spark, except to light the gas, which result will be seen to be brought about by the plate D and its accessories, as described. It will be understood that, considering the length of the burner-tube which is necessary in candleburners,the gas-valve must be slightly opened long enough to enable some issuing gas to reach the burner-tip before the two electrodes are brought into and out of contact.

Having described my invention, what I claim isl. In an electric hand-lighting gas-burner, in combination with the bur11er-pillar having a fixed electrode, a plate D, its center cut away as described, having the projections d, d2, and 5, an arm d, both said plate and said arm being loosely pivoted to the burner-pillar and to each other, a friction-spring d4, a movable electrode hung in the projection d2, a

guide E, and mechanism to properly oscillate said plate and arm so as to cause said movable electrode to make and break contact with the iiXed electrode, at the ignition but not at the extinguishment of the gas, substantially as described.

2. In an electric hand-lighting gas-burner, as a device for operating the movable electrode, the plate D and the arm d, both loosely pivoted to each other and to the burner-tip by the pin 3, the spring d4, a guide E to hold the movable electrode, a movable electrode d5, the connecting-rod X, and mechanism for lifting and lowering the same so as to oscillate the plate D and thereby vibrate said movable electrode, substantially as and for the purpose described.

3. In an electric hand-lighting gas-burner, in combination with a burner-pillar and a supporting-standard therefor, and a fixed electrode thereon, the thumb-cock A, having the toothed plate a, and cam-plate a', the gasvalve B, having the toothed plate Z9, the connecting-rod X, the plate D, arm d, headed screw 3, and the movable electrode d3, all substantially as described and shown.

In witness whereof I have hereunto subscribed my name this 24th day of June, A. D. 1896.

GEORGE J. GALBRAITI-I.

In presence of FRED C. CHAMBERLIN, W. H. LEONARD. 

